Add more missing closing namespace comments.

third_party/WebKit/Source/core/html/parser/HTMLParserIdioms.h

 /*
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 112 matching lines @@
     return attemptStaticStringCreation(vector.data(), vector.size(), width);
 }
 
 inline static String attemptStaticStringCreation(const String str)
 {
     if (!str.is8Bit())
         return attemptStaticStringCreation(str.characters16(), str.length(), Force16Bit);
     return attemptStaticStringCreation(str.characters8(), str.length());
 }
 
-
-}
+} // namespace blink
 #endif